Inorganic oxide coating

Patent metadata

Field	Value
Publication number	US-9605156-B2
Application number	US-201113805159-A
Country	US
Kind code	B2
Filing date	Jun 17, 2011
Priority date	Jun 18, 2010
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

The invention relates to a coating composition comprising an inorganic oxide precursor A MOx based on at least one inorganic element A selected from the group consisting of aluminum, silicium, titanium, zirconium, niobium, indium, tin, antimony, tantalum, and bismuth; and an inorganic oxide precursor B MOx based on at least one inorganic element B selected from the group consisting of scandium, yttrium, lanthanum, and the lanthanoids; wherein A MOx and B MOx are capable of forming a mixed inorganic oxide. A coating made from this composition shows enhanced resistance to hydrolysis. The invention also relates to a process for applying a coating on a substrate using such composition, more specifically to a liquid coating composition for use in a process of applying an anti-reflective coating on transparent substrate; to a coated substrate obtained with such process, and to an article, like a solar panel, comprising such coated substrate.

First claim

The invention claimed is:

1. A coating composition comprising:
an inorganic metal oxide precursor A MOx based on at least one inorganic metal element A selected from the group consisting of aluminum, silicium, titanium, zirconium, niobium, indium, tin, antimony, tantalum, and bismuth;
an inorganic metal oxide precursor B MOx based on at least one inorganic metal element B selected from the group consisting of scandium, yttrium, lanthanum, and the lanthanoids; and
core-shell nanoparticles as a pore forming agent, wherein the nanoparticles have an inorganic shell and an organic core, and wherein
the inorganic metal oxide precursors A MOx and B MOx are capable of forming a mixed inorganic oxide, and wherein
the coating composition comprises 80 to 99.5 parts by weight of the inorganic metal oxide precursor A MOx , and 0.5 to 20 parts by weight of the inorganic metal oxide precursor B MOx based on 100 parts by weight of the inorganic metal oxide precursors A MOx and B MOx , and wherein
the coating composition is anti-reflective.

2. The coating composition according to claim 1 , wherein the at least one inorganic metal element A is selected from the group consisting of aluminum, silicium, titanium, and zirconium.

3. The coating composition according to claim 1 , wherein the inorganic metal oxide precursor A MOx is based on silicium.

4. The coating composition according to claim 1 , wherein the at least one inorganic metal element B is selected from the group consisting of scandium, yttrium, dysprosium, thulium, and lutetium.

5. The coating composition according to claim 1 , wherein the inorganic metal oxide precursor B MOx is based on yttrium.

6. The coating composition according to claim 1 , which comprises 85-99.0 parts by weight of the inorganic metal oxide precursor A MOx and 1.0 to 15 0.5 to 20 parts by weight of inorganic metal oxide precursor B MOx based on 100 parts by weight of the inorganic metal oxide precursors A MOx and B MOx .

7. The coating composition according to claim 1 , wherein the coating composition comprises the inorganic metal elements A and B in a molar ratio of the inorganic metal element A to the inorganic metal element B from 100:1 to 1:2.

8. The coating composition according to claim 1 , further comprising at least one solvent.

9. The coating composition according to claim 1 , wherein the inorganic shell of the core-shell nanoparticles is based on the inorganic oxide precursor A MOx .

10. A process for applying an inorganic oxide coating on a substrate comprising the steps of:
a) providing a coating composition according to claim 1 ;
b) applying the coating composition to the substrate.

11. The process according to claim 10 , comprising the steps of
a) providing a liquid coating composition;
b) applying the coating composition to the substrate;
c) drying the applied coating, and optionally,
d) curing the coating.

Assignees

• Arfsten Nanning Joerg
• Habets Roberto Arnoldus Dominicus Maria
• Buskens Pascal Jozef Paul
• Dsm Ip Assets Bv

Inventors

• Arfsten Nanning Joerg
• Habets Roberto Arnoldus Dominicus Maria
• Buskens Pascal Jozef Paul

Classifications

• G02B1/113

  using inorganic layer materials only · CPC title

• C03C2217/42

  consisting of particles only · CPC title

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• C09D183/14 Primary

  in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (C09D183/10 takes precedence) · CPC title

• C03C2217/425

  consisting of a porous layer · CPC title